This is in my opinion and from personal experience.
They're all copies of each other these days.
My Turnigy 1000w is exactly the same as the Skyrc and the Hyperion equivalent. Cost me £50 new and is 4 years old now.
The Hyperion is £150, big difference.
I think my good life span is down to only using 50% of it's capacity. It's when you run them flat out you get problems.
I have an expensive Chargery S1500 power supply to run it because back then I didn't know about the ebay ones.
I would have no worries about using one of those 24v 1000w ebay jobs for power as I have 2* 36v 350w units running the small cnc mill.
Best advice from me if you're looking at the cheaper alternatives/copies would be:
1. Work out what your batteries would require using the ohms law formula to charge at 1C.
2. Double the figure you got from it.
3. Look for a charger capable of that figure.
4. If it needs a separate psu then go at least 20% bigger than the charger.
For example using 6s
1. A single 6s 5000mah needs (22.2v*5A=111+10%= 122.1w @ 5.5A
2. *2 gives you 244w 11A.
3. Look for at least 250w 11A
4. +20% = 300w 13A+ psu
To parallel 2 of them double it again to #3. 500w 22A & #4. 600w 26A.
Using 4s
1. 14.8v*5A=74w 5A+10%= 81.4w 5.5A
2. *2 gives you 163w 11A
3. Look for one at least the above figure (a 150w will do in this case)
4. +20% = 196w 13A
Double again to parallel 2 of them.
The Amp outputs are a rough guide because at those wattage's equipment has generally higher Amperage outputs anyway.
As long as you don't go lower than the figures suggested.
You'll be running at 50% and will last well.
One other thing is chargers have mostly popped caps etc on discharge. Best to use max 75% of it's potential, discharge in the vehicle or make a halogen light box with a lipo alarm fitted.